Wall board



Nov. 13, 1923. 11,473,981}

.1. w. WAGNER WALL BOARD Filed Nov. 2, 1922 Patented Nov. 13, 1923.

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JESSE W. WAGE, 03F SILVERDALE, SAQ. v

' WALL BOARD.

To all whom it may concern:

Be it known thatl, Jessa W. WAGNER, a-citizcn of the United States, residingat Silvcrdale, in the county of Cowley and State of Kansas, have invented a new and useful Wall Board, of which the following is a specification.

This invention relates to a composition Wall board or lath, one of the objects of the invention being to provide an efiicient and inexpensive structure requiring approximately one-third less of such material as stucco and plaster to complete a square yard of finished work than does any known similar structure.

Another object is to provide a composition board which, when finished with a coating of stucco and plaster weighs approximately one-half of the completed work of the same area on a composition board or lath of any other known make.

A further object is to provide the composition board or lath with a specially prepared surface whereby the finishing material of stucco and plaster will become properly anchored thereto and be more efficiently held than when used on composition boards of other makes.

A still further object is to provide a composition board the ingredients of which will not deteriorate when covered with.any good make of stucco or plaster material, the composition board being provided with several anchoring or binding elements all of which are designed to resist the action of the ordinary ingredients of stucco, plaster or other finishing material.

A further object is to provide attaching or anchoring means for connecting the finishing material to the composition board which, While firm, substantial and strong,

will allow a certain amount of expansion and contraction of the base material of the composition board without cracking or peeling the finishing surface.

A still further object is to provide a composition board constituting an air proof and damp proof structure.

With the foregoing and other objects in view, which will appear as the description proceeds, the invention resides in the conibination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that, within the scope of what is claimeli, changes in the precise embodiment of the invention shown can be made without departing from the spirit of the invention. I

In the accompanying drawings the pre- 1' erred form of the invention has been shown.

In said drawings;-

Figure 1 is a plan-view of a portion of the composition board with successive layers broken away.

Figure 2 is a section through the composition board.

Referring to the figures by characters of reference 1 designates a sheet of Manila rope paper, preferably one ply, to one surface of which is applied a coating 2 of asphalt paint. To the other side of the paper is applied a layer of burlap 3 which has first been saturated with a mixture of hot asphalt and asbestos fiber mixed in'the ratio of 500 parts by weight of asphalt and 100 parts by weight of asbestos fiber. This mixture is applied to the burlap at a temperature of approximately 240 degrees F. A portion of the mixture of asphalt and asbestos fiber has been shown at 4 in the drawings, it being understood that this material extends entirely through the burlap and coats bot-h faces thereof.

Furring strips made of hemp the fibers of which are twisted together are placed along the coated burlap as shown at 5, these strips being spaced apart and treated with a composition of asphalt and asbestos fiber at the same temperature as above specified. Thus when the furring strips are pressed against the treated burlap the said strips will be held in proper relation to the burlap. These furring strips are preferably spaced about three inches apart.

F lax tow fibers are pressed into the asphalt and asbestos composition between the furring strips, these fibers being indicated generally at 6 and havin loose ends projecting outwardly beyond the furring strips 5.

A layer of open mesh wire fabric, indicated at 7 is placed over the furring strips and pressed into the composition of asbestos and asphalt with which the strips are saturated.

Powdered rock indicated by dots at 8 in the drawing is adapted to be blown between ing mixture of asphalt and asbestos-is soft at a high. temperature. After the product has been properly assembled. and removed from the apparatus in which it has been formed it will harden to roduce a stiff board one surface of which is finished with asphaltpaint as at 2 while the other surface is provided with anchoring or binding elements consisting of furring strips, flax fibers, pulverized rock and wire fabric.

Stucco and plaster is to be applied to that surface of the board provided therefor and will be firmly anchored to the board by the four ingredients mentioned, to wit, the flax fibers, the furring strips, the crushed or powdered rock and the wire fabric. The finishin coating of stucco and plaster has been indicated at 9; I

It has been found in practice that by anchoring or binding the finishing coating to the composition board by the means described, said board is free to expand or contract without cracking or peeling the coating. Furthermore the materials forming the board serve to protect the finishing coating from the action of air or moisture that might be otherwise admitted through the board.

What is claimed is:

1. A composition wall board including a textile fabric saturated with a heated mixture of as halt and asbestos fiber and applied to a layer of paper, there being furring strips spaced apart and applied to the saturated fabric, said strips comprising twisted hemp fibers saturated with a heated mixture of asbestos fibers and asphalt.

2. A composition wall board including a textile fabric saturated with a heated mixture of asphalt and asbestos fiber and forming one layer of the board, a layer of paper applied to one face of said saturated fabric, spaced furring strips applied to the other face of the saturated fabric, each strip including twisted fibers saturated with a heated mixture of asphalt and asbestos fibers.

3. A composition wall board including a coarse textile fabric saturated with a mixture of asbestos fibers and asphalt, forming one layer of the board, a backing sheet applied to one face of said layer, spaced furring strips applied to the other face of said layer and comprising twisted fibers saturated with a mixture of asphalt and asbestos fibers, and anopen mesh wire fabric bridging the spaces between the furring strips and adhering to said strips.

4. A composition wall board including a paper backing, a layer of coarse fabric saturated with a mixture of asphalt and asbestos fiber and applied to the backing, spaced furring strips adhering to said layer and comprising twisted fibers saturated with a mixture of asphalt and asbestos" fibers, an open mesh wire fabric bridging the spaces between the furring strips and adhering to said strips, and fibers partly embedded in and adhering to said layer and supported between and beyond the furring strips.

5. A composition wall board including a paper backing, a layer of coarse fabric saturated with a mixture of asphalt and asbestos fiber and applied to the backing, spaced furring strips adhering to said layer and comprising twisted fibers saturated with a mixture of asphalt and asbestos fibers, an open mesh wire fabric bridging the spaces between the furring strips and adhering to said strips, fibers partly embedded in and adhering to said layer and supported between and beyond the furring strips, and

powdered stone adhering to said layer and furringstrips between the fibers.

6. A composition wall board including a paper backing, a layer of coarse textile fabric, spaced furring strips upon the fabric and consisting of twisted fibers, an open mesh wire fabric resting on and bridging the spaces between the furring strips, a binder consisting of asphalt and asbestos fibers saturatin the textile fibers and furring strips an connecting together said fabric, backing, strips and wire fabric, fibers adhering to the binder and extending between and beyond the strips, and finely comminuted stone adhering to the binder between the fibers.

In testimony that I claim the foregoing as my own, I have hereto affixed my signaturein the presence of two witnesses.

JESSE w. WAGNER. Witnesses:

C. B. LESTER, J. N. POINTER. I 

